Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, and five pairs of branching appendages on the abdomen that are used in respiration. Females brood their young in a pouch under their thorax.
A sweep is either of two categories of martial arts techniques. From standing, sweeps are throws or takedowns that primarily use the legs to attack an opponent's legs. On the ground, sweeps are techniques for reversing a grappling position.
The bridge is a grappling move performed from a supine position, lying down face-up. It involves lifting the pelvis off the ground so that the body weight is supported on the shoulders (or head) at one end and on the feet at the other. This move is used in wrestling and other grappling and groundfighting sports, often combined with a twisting motion, to dislodge or flip an opponent who has established a position on top. The bridge is also a common exercise position. This maneuver can also be used to dodge pin attempts.
